Recurring appointment and recurring task schedule item is displayed on the Scheduler view as a series.
You can make exceptions from recurring appointment series and recurring schedule item series.
To make an exception from a series
For example, recurring appointment "Briefing" starts at 9.00 AM each workday, except for the second of August, when the appointment should start at 10.00 AM. To make this exception to your series, you just drag it to 10.00 AM.
To return the exception into the series
To delete a series including all exceptions